胶原蛋白对废弃钻井液絮凝效果的影响  

Effects of the Collagen on the flocculation of waste fluid

作　　者：强涛涛[1] 李娟[1] 任龙芳[1] 张晓峰[1] 王学川[1] 郑书杰 

机构地区：[1]陕西科技大学教育部轻化工助剂化学与技术重点实验室,陕西西安710021 [2]中国石油长庆油田分公司内蒙古苏里格第四采气厂,内蒙古苏里格017300

出　　处：《陕西科技大学学报（自然科学版）》2014年第3期6-8,25,共4页Journal of Shaanxi University of Science & Technology

基　　金：陕西省教育厅专项科研计划项目(12JK0594);西安市科技计划项目(CXY1344(3));咸阳市科技计划项目(2011K10-11);西安市未央区科技计划项目(201118);陕西科技大学科研创新团队计划项目(TD12-04);陕西科技大学研究生创新基金项目

摘　　要：胶原蛋白是一种天然大分子有大量的有机官能团,可以用做废水处理.胶原蛋白水解条件对废弃钻井液絮凝效果影响很大,通过条件优化得到的最佳水解条件为:pH为7.0,温度为40℃,时间为2h,复合酶用量为2.0%(1%的中性蛋白酶和1%的胰蛋白酶).当絮凝效果最佳时COD的去除率为57.4%,悬浮物的去除率为71.7%.最佳条件下水解的胶原蛋白直接处理废弃钻井液,结果表明该废弃钻井液的浊度较低,上清液较透明,但其絮体比较多并且紧实度不够,会产生大量的污泥,不利于固体废弃物的无害化处理,絮凝效果较差.Collagen is a natural macromolecular material,contains a large number of organic functional groups,can be used for wastewater treatment.Collagen hydrolysis conditions had a great influence on the effect of flocculation of waste fluid,obtained the best hydrolysis conditions are optimized by the conditions as follows：the pH is 7.0,the temperature of 40℃,time of 2h,compound enzyme dosage of 2.0%（1%of neutral protease and 1%of trypsin）.Flocculation effect is best when the COD removal rate was 57.4%,the suspended solids removal rate was 71.7%.Used the best conditions of hydrolyzed collagen for processing of waste fluid directly,the supernatant fluid of the waste fluid is transparent,turbidity is low.But its more flocs and compactness is low,can produce a large amount of sludge,unfavorable to the solid waste disposal,flocculation effect is poorer.

关 键 词：胶原蛋白 废弃钻井液 絮凝 效果 

分 类 号：X794[环境科学与工程—环境工程]